hilton



R. W. HILTON. GLASS APPARATUS. APPILICATION FILED SEPT. 9, 1918.

1,309,199. Patented July 8,1919.

2 SHEETS-SHEET I.

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R. W. HILTON.

GLASS APPARATUS.

APPLICATION FILED SEPT. 9,1918:

1 ,309, 1 99., Patented July 8, 1919.

2 SHEETSSHEET 2- awvewtoz 3013mm: nfncromor smzsmron'r, PENNSYLVANIA.

' GLASS APPARATUS.

' Applicationfiled September c.1913. Serial No. 253,305.

new and useful Improvementsin Glass Apparatus, of which the following isa specification.

" for shifting t e pots, by theutilization of This invention relates glass apparatus and more particularly to an improvement in glass furnaces and the means for supporting "the drawing pots therein and-for shifting the pots into andout of; position for the carrying out of the drawing operation.

The primary object of the presentinvention is to provide means for sup or'ting the drawing pots and which means ,the drawing operation-may be carried out more expeditiously than has heretofore been possible, the pot supportlng and shifting means being so constructed and "rupt the drawing operation during the period of 'drainingpf the drawing pots, thus 'for the carrying out oft-he drawing'opera tion must be kept at a relativelyhigh degree Y of temperature,

i that blast of flame.

po'tszwhile they varein draining position so operating in such a manner that when one pot is in position forthe drawing of the cylinder, another pot will be in position fordraining so that it is unnecessary to intersaving" considerable, time and greatly increasing pr0duction Inrthe draining of be directed against the that all. of the glass remaining in the pot will be melted. and the pot thus: completely" drained; [Also .the pot which, is in position but it .is undesirable to ex pose any portion of the cylinder being drawn to'extraneous heat at a higher degree of temperature than that to which any other por} tion of the cylinder is exposed, for if the heat is uneven, the wallof the cylinder will be of inferior quality.

' preventing 'be'of varying thickness and the productwill' Therefore, present invention contemplates the provision of means for directing a .blast of flame against 'the pot being drained, 'it also contemplates the provision heat from this blast of flame reaching the cylinder being drawn and. thus exposing one side of the cylinder to heat at a higher degree of temperature than the other side." In this connectiontheinvention have invented certain" ina glass furnace, novel-v the pots: is essential" while the contemplates the provision of a cylindrical housing the burner for heating the damper pot from which the glass cylinder is to be drawn, and adapted to 'er ed" so that when raised its upper portion will surround or'encompass the pot and thus being'directed against the .pot which is in: i

' draining position.

Another ob ect of t-he invention is to prof STATES. rarenr Y Y Specification of Letters Patent. Patented J 1y 8 191 9. f i

protect the same from the blast of flamei vide means for moving the pots along a hdri-- zontal line within the furnace so that by a Li I dlrect horizontal shifting of the pots, they'fff may be alternately brought into position for the carrying out of the drawing operation and into' position for draining. In the accompanymg drawings:

Figure, 1 is a side elevation of the'apparatu's embodying-the present invention;

"F g. 2 1s a top plan view thereof,

5 view through the apparatus.

includes side walls 2, end walls 3, and a top explained. The top 4 of the furnace has considerably below domes 5 are provided at the top of the fur:

its intermediate portion located in a plane' the end portions so that Fig. 315 a vertical longitudinal sectional f I E In the drawings the furnace is indicated general by the numeral 1 and the samev 1 T which 'is closed except as will be presently j I =n'ace at each end thereof, and each of these gdomes is formed with an opening 6 for the 1 of gases and: heated air currents from the blast of flame which is directed against escape a draining pot. Suitable dampers 7 may be.

provided andadjusted in any suitable manher to cover or expose the respectlve open- I hown in Fig. 3 of the drawings. A partition Wall 8 which is preferably cylindrical and of refractory brick, interiorly divides the fu'rnace into chambers 9 located.

at the ends thereof and of which chambers the'domes 5 constitute the tops. In order that the surplus glass left in the pots after the drawing operation may be melted while the'pots are in tilted or draining position, a gas burner of any suitable type, indicated by the numeral'lO, is fittedv through each end wall 3 of the furnace and this burner is ion of a novel means for" directed upwardly toward the interior of the respective dome 5'and preferably at an the draw- I I of the operatibri, is preferable dinarily the pots are of circular form and each pot is provided at diametrically opposite points with radial trunnions 12 Whichfit slida'bly through slots 13i formed in the side walls 2 'of the furnace, these-slots -ex-'" tending horizontally immediately-below the open intermediate portion of the top'of the furnace and terminating short of the end c Jit WIllbe necessary to swing the 11d sections .80

walls of the said furnace. Thetrunnions .12 are rotatably fitted insuitable bearings 14: carried at the upper corners vof'thedirames 15 of trucks which are indicated-in general", by the numeral 16 andwhich are supported foritravel by -wheels l7 resting upon rails 18 extending exteriorlyof the furnace/and at the opposite sides thereon-it being'under stood that one of the truckslG-is located at each side of thesaid furnace and that -the trucks are movable-in unison as the trun-I nions of thetwo pots are ourrialed 111 the cor'- responding bearings 14 of the trucks." 1n" -'order that the; trucksmay'be moved back-T. ward'ly-and forwardlyupon the rails 18 and, for the purpose of shifting the pots= into and out ofposition for the carrying" out. of the drawing operation, sprocket .chains? 19 are connected each atone end tothe forward side of the respective. truckand each' at itsother end at the rear side of the respective truck the chains intermediate their ends being passed over idle sprocket gears 20 upon a shaft 21 at the rear end of thea-pparatus and being also passed about sprocketgears 22 fixed upon as shaiit 23;journaledv-at theforward end ofthe furnace and adapted to be rotated through'the medium of a crank handleQ-i. 7 Thus when the crank handle is rotated in one direction, the trucks will bemoved-toward the rear endi-of the furnace carrying with. them the pots: so that-one pot willrbe'brought to draining positio-nand the ether to position for the carrying out of the drawing operation, and when the? crank handle is rotated in the op-p-ositedi'rection, the trucks and the potscarried thereby will be shifted toward the front of the apparatus; a The depressed intermediate portion of'the top of the furnace is open as indicated by the numeral 25, but is to bepartly'closed by the sections 26 of" a'lid,'"which sections are provided upon their upper sides with bosses sections and rest upon theupper :edges of the side Walls ofthe furnace when the lid tions shown in Fig. 3 of thedrawings. Arms .uof thetrucks.

suitable means may be =trunnions12;for therpotsandmayv-be. .and swungafor the purposestatedi -51 upp y pipe provided at its upper end-rwitliuaburner Q8 are s e izui'etl to outer'sides'oii the 27, and at their extremities are pivotally or hingedly conncted asatwith the side walls of the furnace so that the sections of thelid maybe swung upwardly a greater or less distance as indicated in dotted lines in down ..to assumetheiiullline position shown in the several figures; "The lid sections 26 are so formed that .Whenthey .a-re in; low; cred position they will g match to providean;

opening 3.0 of alidiametervto more orhless 7 snugly receive, the; upper portion f of the potf which is in position for the 1 drawing of ,the

cylinden. ,Of course, before shiftingthepots,

26 upwardly so that they will clearv the'wallfff adapted to lie-manipulat d for the purpose"? i In ordento closethe s1ots13in the side,

{walls of-thefurnac'e and thus retain theheat ,withinthefurnace, closure plates 31 are car-f ried by =theupperendsiofthe frames '16 and sidewalls of the'furnace so I n-order to provide {9i extend forwardlyi. ,and. rearwardly. beyond thelframes and: beside. the outer faces of the 1 asto completely a, cover the slotsin all positions ofladjustment.

for-tiltingof the pots i -,to draining. and horizontal positions, any,

e p qye nd n th I :drawingshand:levers.32;.are secured toithe '5 The numeral '33 'ind-icatesa fuel noz'zle --34,= and this z-pipenleadsgupwardly ably cylindrical. and built brick, thehousing; atits pipe for thepurfound, desirable, this housing may beidispensed with.

. As:l1-ere"tofore-st;ated, -itlisQdesirable to grasped;

tlllOl'lgll thegbottom-o'f aihousi-ng 35 prefersup ofv refractory top' being (of open w. construction or ;reticulated,as indicated by; 13 the numerah36, sjoatha-tuthe flame fromthe burner fii wi'll be distributed evenly: against-i the undein side of the ,pot from whiclrglass .j is being drawni and which;potwoccupies ,a3 1 position within the opening-130 f the lidQQ-J "While-it is ---preferable,ithat the-housing; 35 :be provided for the burner 1 15 pose stated, gnevertheless; 1f

maintainfthe glass 'Wlthlnf-tllG-pot from which the cylinder-ifs-being drawn at a -sub- "stantially constant temperature and in order:

' that thismay: be accomplished, a-dampertde-=-,-.- I vice-is provided: as wilhnoWa-be described. lhisdamper: isindicatedin general-bythe annme'r al- 317 :and' -'the-s'aiiie comprises a hole low cylindrical sh'eet :niet-al body-fitted for: 1

vertical sliding-movementthrough an opening 38 formed inthe bottom' ofithe 'parti'-" of the furnace,

so that the trunnions may :haVe Yvertmal the ends of upon the drums .46! onto slacken thechains 42 are fitted upon i of the furnace, and chains or other flexible idle pulleys A2. 45 mounted attion' 8 and said: damper surrounds and 'com-' pletely inclosesthe housing for the burner and at its lower end rests upon an'annular 3 head .39 provided at diametrically opposite points with trunnions 40 which are fitted through slots 41 formed in the side walls the slots extending vertically movement therein for the purposeiof. raising and lowering the head 39 to correspondingly raise and lower the 1 damper 37-3 1 Idle 'pu-lleys 9 elements 43am: permanently fixed each-at "one end as atv 44 to the respective side wall and are-passed beneath the v along a of the furnace I 1 and over other idle pulleys faces of the'said side-wall'stilli- .The chains or'other flexible elementsare'ronnected at their other ends to/drums 46"secured upon a shaft 47 mounted in suitable bearings uponthezfor ward end ofth'ef furnace. A cranlchandle, 4L8-isfixed upon the end'of the shaft 47 and-throughthismediurm flie'shaft may be rotated to-wind the chains so as in the former instance to elevate the A suitable pawl and ratchet device 49 may trunnions and the: heads 39 from which they extend, thus elevating thedamper '37, and in the latter instance to lower the said damper.

, be ,provided in conuection'with the shaft 47 7 fwhereby to hold the same against backward rotation; When the damper 37' is elevated,

its upper end willencomp'assand completely 'inclose the bottomportion of the pot which is in position for the drawing of the cylinder, and in order that ,the damper will not interfere with the bearing trunnionsfor' this ,pot, the upper edge of the wall of the damper is formed at diametrically opposite points with notches 50 designed to receive the trunnions when the damper is'elevated, the said upper edgeof the wall of the damper 111 other respects engaging against the under surface of the sect-ions 26 of the lid so as to completely exclude heat from the burners 10 and at the same time close-in and. etaln the heat g ven off from the burner nozzle 34. 1

If desired the damper 37 may be formed or certain kinds of clay or other refractory,

niaterial and in practice the upper end' of this damper will preferably/be spaced a sufiicient distance from the pot l l'to permit free sliding movement between the parts and ,also to allow the heat :to pass upwardly between the inner walls ;of the damper and the outerside wall of the pot and beneath the'lid. 26,as well as directly against the botv tom of the pot, thus causing a uniform heat- 'ing of the contents of the pot and consequently producing a uniform thickness of glass.

fixed points'upon the outer Having thus described the invention, what 'iselaimed as new is:

1'. Inglass apparatus, I drawing opening and a drawing pots, and means supporting the pots a furnace having a and operable to shift-the pots along a substantially horizontal straight line alter nately to position within the drawing openf ing and to position within the draining chamber. 2."In glass apparatus, in combination, a furnace having a drawing-"opening, and 'drainingchambers located at opposite sides ofthe drawing opening, and means for suporting drawing pots within the vfurnace 'andoperable to alternately shift the pots horizontal straight line into position opposite the drawing opening and to positi o'n within the respective draining chamber. *3. In glass apparatus, in combination, a furnace having a drawing opening and draining chambers at opposite sides of the said opening, means for supporting draw ing' pots in spaced relation within the fur naee and substantially horizontally alined, and means for actuating the supporting meansto selectively move the pots along astraight horizontal line into drawing posi tionand into position within the respective "draining chambers.

4. In glass apparatus, in combination, a. furnace, having a drawing opening and draining chambers at opposite sides of the drawing opening, pot supporting, means movable longitudinally of the'furnace substantially in a horizontal line with the drawing opening, spaced drawing pots supported by the said means and tiltably mounted, and portingfineans to shift the pots selectively into position opposite the drawing opening and to position within the respective draining chambers. I 5. In glass apparatus, in combination, a furnace having a drawing opening and draining chambers at opposite sides of the drawing opening, pot supporting means movable longitudinally of the furnace substantially ina horizontal line with the drawing opening, spaced drawing pots supported by the said means and tiltably mounted, and means for actuating the supporting means to shift the pots selectively into position opposite the drawing opening and to position within the respective draining chambers, each draining chamber having a dome extending above the plane of the drawingopening whereby to permit of tilting of the respective pot to draining position.

V In glass apparatus, a furnace having drawing opening and draining chambersa't opposite sides of the drawing opening, the side walls of the furnace being formed with slots extending substantially horizontally draining chamber,-

means for actuating the sup+ and "approximately in the plane of the drawing opening, drawing pots-having trunnions' fitting slidably through the slots, and means 'located exteiiorly of the furnace and including bearings for the trunnions and movable to shift the pots to bring the same selectively to position'within'thedrawing openin and to position within the respective draining chambers. r 1

"7'. In glassapparatus, a furnace having a drawing opening and draining chambers ocated at opposite sides of the drawing opening,ithe sidewalls of the furnace being pro- 1 vided-with slots extending substantially,

horizontally, drawing pots having trunnions slidably fitting through the slots, trucks sup-- ported for travel exteriorly of the furnace at the opposite sidesthereof and having bearin for the' said trunnions, and means forshifting the trucks longitudinally of the furnace whereby to shift the pots selectively into position opposite the drawing'opening and into position within the respective a,

. draining chambers.

8. In glass apparatus, drawing opening and'draining chambers lorated at'opposite sides of the drawing opening, the side walls ofthefurnace being provided with slots-extending substantially tro -horizontally, drawing potshaving trunnions slidab'ly fitting through the slots, trucks supshafts at the ends of the furnace, gear eleported for travel exteriorly of the-furnace at the opposite sides thereof and 'having bearings for the said trunnions, flexible ele-.

ments connected at their ends with the trucks,

merits upon the shafts about which the flexible; elements are trained,- and means for rotating one of said shafts whereby to impart nbers, g

9. Inglass apparatus, a furnace provided travel to the said trucks. for the purpose of selectively shifting the pots into position opposite the drawing opening and into OSl? tion within the respective draining 0 am.-

f" 'in its top with a drawing opening and provided interiorly at opposite sides of its drawing. opening with draining chambers each having a dome extending-above. thatportion of the top in which the drawing openn is provided, burners fitted through the en walls: of the furnace and arranged to dischargetheir flame jets upwardly in the direction of the interior of the respective domes, drawing pots, and means for supporting the drawing pots for tilting movementand for "movement longitudinally within the furnace to position opposite the draw- --Ying openin andtoposition within. the

domes of the 1 res pectivedraining chambers.

"210;:111'1glass-apparatus, a. furnace pro.-. vided in its top .with a drawing opening and provided interiorly-at opposite sides of s drawing opening with draining chambers a furnace havin a each having a dome extending above that portion of the top in which the drawing openin is provided, burners fitted through the en walls ofthe furnace and arranged .to discharge their flame jets upwardly in the direction of the interior of the respective domes, drawing pots, means forsupporting the drawing pots for tilting movement and for movement longitudinally within the furnace to position .oppositethe drawing 0pen-- to discharge their flame jets upwardly in the direction of the interior of the respective domes, drawing pots, means for supporting thedrawing pots for tilting movement and ome extending above. that openin is provided,. burners fittedthrou'ghthe on walls of the furnace and arranged.

for movement longitudinally within the furnace to position opposite the drawing.

opening and to position within the domes of the respective draining chambers, and a damper for excluding heat from the burners from either pot occupying the drawing position.

12. In. glass apparatus, a furnace provided. in its top with a drawing opening and at opposite sides of the drawingopening being.

. provided interiorly with drainin chambers,

a burner within each draining c amber for directing flame against a pot in draining position. within the chamber,: drawing pots,

means for supporting the pots. and operable to shift the pots into position within the drawing opening'and into position within the respective. draining chambers, and

. damper Within the furnace between the said chambers movable to osition to surround either drawing pot w en in drawing position whereby to exclude heat from the burners. 13. In glass apparatus, a furnace proand atoppositesides of the drawingopening being provided v interiorly ,with draining chambersga burner within each draining chamber for directing flame against a .pot in draining position within the chamber,

'115- vided in its top with a drawing opening drawing pots, means forsupporting the pots and operable to shift the pots into position within the drawingopening and into position within the respective. draining-chambers, and a cylindrical damper vertically movably supported within the furnace between the chambers and arranged in elevated tion to Surround operable chambers, the furnace cated between the position to surround either pot when in drawing position.

14:. In glass apparatus, a furnace provided in its top with a drawing opening an at opposite sides of the drawing open ng being provided interiorly with drain ng chambers, a burner within each draining chamber for directing flame against a pot in draining position within the chamber, drawing pots, means for supporting the pots and operable to shift the pots into position within the drawing opening and'into position within the respective draining chambers, a cylindrical damper vertically movably supported within the furnace between the chambers and arranged in elevated posieither pot when in drawing position, and means operable from the exterior of'the furnace to vertically adjust the said damper.

15. In glass apparatus, a furnace provided in its topwith a drawing opening an provided interiorly at opposite sides 'of the drawing opening with draining chambers, a burner within each chamber for discharging flame against a pot in draining position within the chamber, drawing pots within the furnace, means for supporting the pots and operable to shift the pots selectively into position within the drawing opening and into position within the respective draining chambers, the furnace having a chamber located between the draining chambers, ,a

burner within the last-mentioned chamber beneath the drawing opening, and a damper surrounding the last-mentioned burner and vertically movable and arranged in elevated position to surround either pot when in position within the drawing opening. 5 16. In glass apparatus, a furnace provided in its top with a drawing opening and provided interiorly at opposite sides of the drawing opening with draining chambers, a burner within each chamber for discharging flame against a pot in draining position within the chamber, drawing pots within the furnace, means for supporting the pots and to shift thepots selectively into position within the drawing opening and into position within the respective draining having a chamber 10- draining chambers, a burner within the last-mentioned chamber beneath the drawing opening, a damper surrounding the last-mentioned burner and vertically movable and arranged in elevated position to surround either pot when in position within the drawing opening, and'means for vertically adjusting the said damper.

17 In glass apparatus, a furnace provided in its topwith a drawing opening and provided interiorly at opposite sides of the drawing opening with draining chambers, a burner within each chamber for dischargin elevated position to surround either pot.

in position 'within the drawing opening whereby to exclude from the vicinity of the pot heat from the first mentioned burners.

18. In glass apparatus, a furnace provided in its top with a drawing openin vided interiorly at opposite si es of the drawing opening with draining chambers, a burner within each chamber for dischargin'gflame against a pot in draining position within furnace, means for supporting the pots and operable to shift the pots selectivelyinto position within the drawing opening and into the chamber, drawing pots within the and proposition within the respective draining v chambers, the furnace having a chamber located between the burner within the last-mentioned chamber draining chambers, a

beneath the drawingppening, a supporting member vertically ad ustable within the furnace, means operable from the exteriorof thefurnace for adjusting the said member, and a cylindrical damper supported by the member and vertically movable therewith within the last mentioned chambe'r'and sur-. rounding the last ranged when in elevated position to surround either pot when in position within the drawing opening.

19. In glass apparatus, in its top with a drawing opening and provided interiorly at opposite sides of the drawing opening with draining chambers, a burner within each chamber for discharging flame against a pot in draining position within the chamber, drawing pots within the furnace, means for supporting the pots and operable to shift the pots selectively into position within the drawing opening and into positlon within the respective ble elements'eonnected with the drums and mentioned burner and. ar-

a furnace provided with the side walls of the furnace and 'trainedfiiver the idle pulleys wherebywhen the said elements are wound upon the drums the supporting member will be elevated, and

a cylindrical damper carried by the supporting'member and movable vertically within the last-mentioned'chamber and surrounding the last-mentioned burner and arranged in elevated position to surround either pot when in ing. v

20. In glass apparatus, a furnace having an opening in its top and provided interiorly at opposite sides of the openingwith draining chambers, lid sections mounted for swinging movement upon the furnace and arranged when in lowered position to match withinlthe said opening and to provide between them a drawing opening, drawing pots,-and-means for supporting the pots for I movement in the furnace into position within the drawing opening surrounded by the sections of the lid and into position within damper within the furnace movable to posi tion to surround either pot when in drawing (topics of this patent may he obtained for position within the drawing openposition and cooperating with thejnderside of the lid sections to exclude heat from the vicinity of the pot.

22. In glass apparatus, a furnace provided in. its top with a drawing opening and provided interiorly with a draining chamber, a burner fitted through the end wall of the furnace and arranged to discharge its flame upwardly in the direction of the top of the draining chamber, drawing pots, means for supporting the pots and for moving the same successively into position beneath the drawing opening and to position within the draining chamber in which latter position the pot occupying-the same Will be subjected to the heat from the burner, and a damper for inc-losing either pot when in the drawing position; v

23. In glass apparatus, a furnace provided in its top with a drawing opening and provided interiorly with a draining chamber, a burner fitted through the end wall of the furnace and arranged to discharge its flame upwardly in the direction of the top of the draiping chamber, drawing pots,'means for supporting the pots and for moving the same successively into position beneath the drawing opening and to position within the draining chamber in which latter position the pot occupying the same will be subjected to the heat from the burner, a cylindrical damper vertically movably supported within the furnace and arranged in elevated position to surround either pot when in drawingposition, and means operable fromthe exterior of the furnace to vertically ad ust the said damper.

In testimony whereof I aflix my signature.

ROBERT w. HILTON. [Ls] five cents each, by addressing the "commissioner of Patents, Washington, it. 0." Y 

